16689554020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43919879}}^1$

素因数の和:43919907

約数の個数: 24

約数和(自身を含む): 36892699200

約数和(自身を除く): 20203145180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 43919879, 87839758, 175679516, 219599395, 439198790, 834477701, 878397580, 1668955402, 3337910804, 4172388505, 8344777010, 16689554020]

約数ペア:

[(1, 16689554020), (2, 8344777010), (4, 4172388505), (5, 3337910804), (10, 1668955402), (19, 878397580), (20, 834477701), (38, 439198790), (76, 219599395), (95, 175679516), (190, 87839758), (380, 43919879)]